Microscopic Anatomy of Foot of the Spiny Top Shell, Batillus Cornutus (Lightfoot, 1786) (Gastropoda: Turbinidae)

Jung, Gui Kwon; Park, Jung Jun; Lee, Jae Woo; Lee, Jung Sick

doi:10.2983/0730-8000(2006)25[1071:maofot]2.0.co;2

Cited by 2 publications

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“…2, it can be seen that most of the mucous cells in the distal intestine of hybrid grouper are type II cells. As an acidic mucous cell, the acidic mucus secreted by type II mucous cells plays an important role in regulating the transport of proteins and their residues, lubricating coarse feed, and increasing the viscosity of mucus and immune protection 40 . In the present study, we observed that the numbers of type II mucus cells in the intestines of bL and bH-NaB group sh were not signi cantly different from those in the FM group, whereas in contrast, numbers were signi cantly reduced in the bH group, thereby indicating that a high dose of 7S can signi cantly inhibit the formation of type II mucus cells and thus result in the reduced secretion of antimicrobial active substances.…”

Section: Discussionmentioning

confidence: 99%

β-Conglycinin Regulates Intestinal Immunity through the CIITA-mediated MHC II-PI3K/Akt/mTOR Pathway in Hybrid Grouper: The Ameliorative Effects of Sodium Butyrate (NaB)

Yin

Liu

Tan

et al. 2021

Preprint

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We investigated the effects of low and high doses of 7S and the ameliorative effects of NaB (based on high-dose 7S) on the growth performance, serum immunity, distal histopathology, and CIITA-mediated MHC II-PI3K/Akt/mTOR pathway in hybrid groupers. The results revealed that the specific growth rate of groupers significantly increased, decreased, and increased in the low-level 7S (bL), high-level 7S (bH) high-level 7S plus NaB (bH-NaB) groups, respectively. The feed coefficient ratio was significantly increased in the bH and bH-NaB groups, whereas serum levels of IFN-γ, IL-1β, and TNF-α were upregulated in the bH group. The intestinal diameter/plica height ratio was significantly increased in the bH group. Furthermore, there were increases in nitric oxide, nitric oxide synthase (NOS), and peroxynitrite anion (ONOO−) in the bH group, and decreases in NOS and ONOO− in the bH-NaB group. The mRNA levels in distal intestine of TSC1, mTOR C2, CIITA, and CREB1 were significantly upregulated in all three treatment groups, whereas those of IKKα, Rheb, mTOR C1, mLST8, EIF4B, NFY, GILT, and AEP were upregulated and downregulated in the bH and bH-NaB groups, respectively. These indicate 7S has a regulatory effect on serum immunity and affect distal intestinal development by modulating hindgut injury-related parameters. Within the distal intestinal tract, 7S can induce intestinal inflammation by activating the CIITA-mediated MHC II-PI3K/Akt/mTOR pathway, which eventually manifests as a reduction in growth performance. Supplementing feed with NaB represents an effective approach for enhancing serum immunity, and also protects the intestines from damage caused by high-dose 7S.

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Section: Discussionmentioning

confidence: 99%

β-Conglycinin Regulates Intestinal Immunity through the CIITA-mediated MHC II-PI3K/Akt/mTOR Pathway in Hybrid Grouper: The Ameliorative Effects of Sodium Butyrate (NaB)

Yin

Liu

Tan

et al. 2021

Preprint

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Benzodiazepine Delorazepam Induces Locomotory Hyperactivity and Alterations in Pedal Mucus Texture in the Freshwater Gastropod Planorbarius corneus

Fogliano,

Carotenuto,

Agnisola

et al. 2023

IJMS

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Benzodiazepines, psychotropic drugs, are ubiquitous in the aquatic environment due to over-consumption and inefficient removal by sewage treatment plants. Bioaccumulation with consequent behavioral and physiological effects has been reported in many aquatic species. However, the responses are species-specific and still poorly understood. To improve the knowledge, we exposed the freshwater snail Planorbarius corneus to 1, 5, or 10 µg/L of delorazepam, the most widely consumed benzodiazepine in Italy. Conventional behavioral tests were used to assess the effects on locomotor and feeding behavior. Histological and biochemical analyses were also performed to detect possible changes in the structure and composition of the foot mucus and glands. The results show a paradoxical response with reduced feeding activity and locomotor hyperactivity. Pedal mucus was altered in texture but not in composition, becoming particularly rich in fibrous collagen-like material, and a significant change in the protein composition was highlighted in the foot. In conclusion, exposure to delorazepam induces disinhibited behavior in Planorbarius corneus, potentially increasing the risk of predation, and an increase in mucus protein production, which, together with reduced feeding activity, would severely compromise energy resources.

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Microscopic Anatomy of Foot of the Spiny Top Shell, Batillus Cornutus (Lightfoot, 1786) (Gastropoda: Turbinidae)

Cited by 2 publications

References 0 publications

β-Conglycinin Regulates Intestinal Immunity through the CIITA-mediated MHC II-PI3K/Akt/mTOR Pathway in Hybrid Grouper: The Ameliorative Effects of Sodium Butyrate (NaB)

β-Conglycinin Regulates Intestinal Immunity through the CIITA-mediated MHC II-PI3K/Akt/mTOR Pathway in Hybrid Grouper: The Ameliorative Effects of Sodium Butyrate (NaB)

Benzodiazepine Delorazepam Induces Locomotory Hyperactivity and Alterations in Pedal Mucus Texture in the Freshwater Gastropod Planorbarius corneus

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